SPV450yog ib hom kev ua haujlwm siab -lub zog steel uas tau siv dav hauv ntau yam kev lag luam thiab engineering, suav nrog roj av refining, tshuaj ua haujlwm, kev tsim tshuab hnyav, thiab kev tsim kho vaj tse. Nws muaj npe nrov rau nws cov kev ua tau zoo tshaj plaws, muaj qhov ua tau zoo heev uas ua rau nws tiv thaiv cov kev cuam tshuam sab nraud, zoo tshaj weldability uas pab txhawb kev tsim cov txheej txheem nyuaj, thiab txhim khu kev qha corrosion uas ua rau lub neej ntev kev pab cuam nyob rau hauv ib puag ncig hnyav. Cov yam ntxwv no ua rau nws yog cov khoom siv zoo tshaj plaws rau kev tsim khoom hnyav- cov khoom siv tshuab ua haujlwm, xws li crane booms thiab excavator thoob, nrog rau cov khoom siv tseem ceeb uas yuav tsum tau muaj kev thauj khoom siab -cov kabmob muaj peev xwm thiab kav ntev.
Cov cuab yeej cuab tam rau SPV450 steel phaj:
| Thickness (hli) | |||
| SPV450 | Ntau dua lossis sib npaug li 6 Tsawg dua lossis sib npaug rau 50 | >50 Tsawg dua los yog sib npaug rau 100 | > 100 |
| Yield zog (Ntau dua lossis sib npaug rau Mpa) | 450 | 430 | 410 |
| Tensile zog (Mpa) | 570-700 | ||
Tshuaj muaj pes tsawg leeg rau SPV450 steel phaj (Ladle Analysis Max%)
| Cov ntsiab lus tseem ceeb ntawm SPV450 steel phaj | ||||
| C | Si | Mn | P | S |
| 0.18 | 0.75 | 1.60 | 0.030 | 0.030 |
Cov yam ntxwv txheej txheem ntawm SPV450 steel
1. Kev kho cua sov ua kom zoo
Txhawm rau ua tiav nws cov txiaj ntsig siab zog (min{0}} MPa), SPV450 feem ntau yog xa mus rau hauv lub xeev Normalized (N) lossis Quenched thiab Tempered (Q + T). Cov txheej txheem no ua kom zoo dua cov nplej loj, txhim kho qhov sib npaug ntawm qhov toughness thiab lub zog thaum ua kom muaj kev sib luag ntawm cov phaj.
2. Txhim kho Weldability
Lub ntsiab lus txhais yog nws txoj kev txhim kho weldability, ua tiav los ntawm kev tswj cov pa roj carbon sib npaug (Ceq). Qhov no txo qhov kev pheej hmoo ntawm qhov txias txias thiab tso cai rau Simulated Post- Weld Heat Treatment (SPWHT), kom ntseeg tau tias cov pob qij txha welded tuav txhua yam kev ntseeg zoo ib yam li cov hlau puag.
3. Precision Rolling thiab Shaping
Kev tsim khoom niaj hnub no feem ntau siv Thermomechanical Controlled Processing (TMCP) lossis cov txheej txheem kub siab tshaj -rolling. Cov no ua kom muaj qhov tseeb qhov tseeb (qhov tsawg kawg nkaus thickness fluctuation) thiab zoo heev flatness, uas yog ib qho tseem ceeb rau kev tsim loj - nplai reactor Cheebtsam los yog spherical tso tsheb hlau luam.
4. Kev soj ntsuam nruj nruj
Cov txheej txheem cuam tshuam nrog kev sim tsis zoo -kev puas tsuaj, feem ntau yog Ultrasonic Testing (UT), txhawm rau txheeb xyuas qhov tsis xws luag. Rau cov ntawv thov tshwj xeeb, nws tseem tuaj yeem raug kuaj HIC (Hydrogen-Induced Cracking) thiab SSC (Sulfide Stress Corrosion) kev kuaj ntsuas.
Cov ntawv thov siv
Cov hlau yog dav siv nyob rau hauv sectors xws li roj av, tshuaj ua, thiab lub zog tsim. Cov cuab yeej tshwj xeeb muaj xws li:
Cov nkoj siab:Reactors, separators, thiab lub tank kheej kheej.
Boilers:Boiler nruas thiab siab - lub thawv ntim ntim.
Cia:Liquefied gas tanks thiab nuclear reactor nkoj.
Cov txiaj ntsig tseem ceeb ntawm SPV450 steel
Siab zog - rau - Qhov hnyav piv:
Qhov tsawg kawg nkaus 450 MPa yield zog tso cai rau cov hlau nyias nyias hauv kev tsim kho. Qhov no txo qhov hnyav tag nrho thiab cov nqi khoom siv yam tsis muaj kev cuam tshuam cov qauv kev ncaj ncees lossis kev nyab xeeb margins.
Weldability zoo heev:
Ua tib zoo tswj chemistry ua kom cov vuam zoo tshaj plaws, ua kom yooj yim fabrication thiab txo qhov kev pheej hmoo ntawm vuam tsis xws luag xws li txias tawg.
Txhim khu kev ua tau zoo:
Engineered rau nruab nrab- qhov kub thiab txias kev pab cuam nyob rau hauv xav tau ib puag ncig (petroleum, tshuaj, hluav taws xob tsim), nws muab ib yam, ntev - lub sij hawm mechanical stability nyob rau hauv lub siab cycles.
Guaranteed Zoo:
Cov txheej txheem tsim khoom nruj, feem ntau suav nrog kev ua haujlwm zoo thiab kuaj ultrasonic, ua kom cov khoom zoo sib xws thiab kev ywj pheej los ntawm kev tsis xws luag sab hauv.
Ntau yam:
Tsim nyog rau qhov tseem ceeb siab - cov cuab yeej siv siab xws li boilers, cov hlab ntsha siab, thiab cov tso tsheb hlau luam, ua rau nws muaj ntau yam kev xaiv rau kev lag luam hnyav.
Yog tias koj xav paub ntxiv txog GNEE cov khoom, koj tuaj yeem xa email rau beam@gneesteelgroup.com. Peb zoo siab tshaj los pab koj.
Dab tsi yog cov tshuaj tseem ceeb ntawm SPV450?
Cov tshuaj lom neeg tseem ceeb ntawm SPV450 suav nrog carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), thiab lwm yam. Kev tswj nruj ntawm cov ntsiab lus no ua kom nws cov khoom ruaj khov thiab kev ua haujlwm zoo.
Yuav ua li cas tswj SPV450 cov khoom nyob rau hauv corrosive ib puag ncig?
Txhawm rau tswj hwm SPV450 nyob rau hauv ib puag ncig corrosive, ntsuas xws li tiv thaiv- txheej txheej corrosion, galvanizing lossis cathodic tiv thaiv tuaj yeem raug saws. Kev tu thiab tshuaj xyuas tsis tu ncua kuj tseem tsim nyog los tiv thaiv kev puas tsuaj corrosion.
Lub zog tensile ntau ntawm SPV450 yog dab tsi?
Lub zog tensile ntau ntawm SPV450 yog 570-720 MPa. Qhov ntau yam no ua kom ntseeg tau tias nws tuaj yeem hloov kho kom haum rau kev ua haujlwm sib txawv thiab kev ua haujlwm, tswj kev ua haujlwm ruaj khov hauv qhov nro.
Puas yog SPV450 tiv taus rau qis- qhov kub thiab txias ib puag ncig?
SPV450 muaj qee yam qis -kub tsis kam. Nws muaj peev xwm tuav tau zoo toughness ntawm -20℃rau -40 degree, tsis yooj yim rau brittle puas. Txawm li cas los xij, rau ib puag ncig uas tsis tshua muaj qhov kub thiab txias, yuav tsum tau ntsuas qhov ntsuas kub tsawg ntxiv.
Qhov txawv ntawm SPV450 thiab SPV410 yog dab tsi?
Qhov sib txawv tseem ceeb nyob rau hauv lub zog tawm los: SPV450 muaj qhov tsawg kawg nkaus lub zog ntawm 450 MPa, thaum SPV410 yog 410 MPa. SPV450 kuj tseem muaj zog dua thiab hnav tsis kam, haum rau siab dua -load scenarios.
SPV450 puas tuaj yeem siv rau kev tsim cov hlab ntsha siab?
Yog lawm, SPV450 yog siv dav hauv kev tsim cov hlab ntsha siab. Nws lub zog siab thiab zoo toughness tuaj yeem tiv taus siab sab hauv, ua tau raws li cov qauv kev nyab xeeb ntawm cov khoom siv hauv cov roj av thiab tshuaj lom neeg kev lag luam.
Yuav ua li cas cov txheej txheem tsim nyog rau SPV450?
SPV450 yog tsim rau ntau txoj kev ua, suav nrog txiav, khoov, stamping thiab vuam. Nws muaj cov yas zoo, uas tuaj yeem ua kom qhov tseeb thiab zoo ntawm cov khoom ua tiav yam tsis muaj pob txha tawg.
SPV450 puas tuaj yeem ua cua sov- kho kom zoo dua qub?
Yog lawm, SPV450 tuaj yeem raug kho cua sov xws li quenching thiab tempering los txhim kho nws lub zog thiab hardness. Kev kho cua sov kom zoo tuaj yeem txo cov kev ntxhov siab sab hauv thiab txhim kho qhov ruaj khov.
Dab tsi yog qhov weldability ntawm SPV450 zoo li?
SPV450 muaj qhov zoo weldability. Nrog rau preheating thiab post-weld heat treatment, nws tuaj yeem tsim cov pob qij txha ruaj khov yam tsis muaj qhov tawg lossis lwm yam tsis xws luag. Qhov no ua rau nws yooj yim los ua cov txheej txheem complex.
Dab tsi yog qhov tsawg kawg nkaus tawm lub zog ntawm SPV450?
Qhov tsawg kawg nkaus yield zog ntawm SPV450 yog 450 MPa, uas yog qhov taw qhia tseem ceeb rau nws cov kev faib raws li siab - lub zog steel. Lub zog no ua rau nws tuaj yeem nqa cov khoom hnyav hauv ntau qhov chaw ua haujlwm hnyav yam tsis muaj deformation.